Basin-cock.



PATENTED JAN. 8, 1907.

H. MUELLBR & A. SCHUERMANN.

BASIN COCK.

APPLIoATroN FILED Nov, 9. 1905. v

2 SHEETS-SHEET l.

PATENTED JAN. 8, 1907.

H. MUELLER c A. SCHUERMANN.

BASIN COCK.

APPLICATION FILED Nov. 9. 1905.

` 2 SHEETS-SHEET 2.

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Z5 l 9 .2Lf

X- -x I l l l fig 7.

Invenor. Mnee Wen'rg JueZZe 'rt L 711-071, 5072746 r'navv VUNITED STATES PATENT onirica.

HENRY MUELLER AND ANTON SCHUERMANN, OF DECATUR, ILLINOIS, AIS- SIGNORS TO H. MUELLER MANUFACTURING OO., OF DECATUR,

ILLI- Nois, A CORPORATION OF ILLINOIS. /jjf' BASIN-COOK.. i'

Patented Jail. s, 190%.

Application filed November 9,1905. Serial No. 286.612. i l

In the drawings 'forming part` of specincation, Figure 1 is a central vertical section through a cock embodying our invention, showlng both the main valve and the auxiliary valve entirely closed. Fig. 2 is a sec-" t1on through the cock, showing the auxiliary v valve partly opened. Fig. 3 isa plan of the plston agalnst which water-pressure acts to force the main valve partly open, the lower l vpart of the valve-stem being shown in crosssection on line Y in 1. Fig. 4 is asection through the upper part of the valvestem on line X in Fig. l, a lug onthe valvestem anda corresponding groove in the cap being shown in plan. Fig. 5 is a section through the cock, showing the valves thereof entirely open. 6 is a section through the lower part 'of the lalve-stem and the water-passage encirc the same, the section being taken on line in Fig. 5 and stoplugs on the piston-stem being shown plan. Fig. 7 is a plan of the screen used to yexclude sediment and solid particles from the valves of the cock.

The cock-body 1 has the spout 2 and the two cylindrical extensions 1a and 1b. The upper extension 1b of the cock-body is externally threaded at its upper end, and a cap 3 for the body is internally threaded at its lower end to screw onto the body. A fiber washer 12 rests on .the upper end of the upper cylindrical extension of the body, 'a brass washer 11 is placed on the ber washer, and the cap 3 has an internal shoulder which clamps the two washers in place to form a joint. v A partition 3 is formed in the A cap above the brass washer 11, anda recess in the under surface of the partition contains packing 10. The upper end of the cap is shaped to receive the upper part 5 .of Ithe valve-stem, and a recess 3b is formed in the cap between the upper end thereof and the partition 3'?. sion la of the cock-body is threaded externally above its-lower end, and a base 21 is Vinbody. A iber washer22 l. iits between a flange 1c of the lower body extension and a shoulder on the upper end of the base. The base has an annular receptacle 23 for the screen 24., which receptacle is the same size as the external dimensions of the lower cx- -.tension of the cock-body, and when the body is screwed onto the base and the ber washer 22 is rmly compressed the lower end of extension 1a is just above but out of con- The lower cylindrical extenternally threaded at its upper end to screw onto the said lower extension of the cocktact with the edge of the screen. 'A parti- .l

tion in the cock; body just` below the s out has the seat 28 for the main valve o the cock.

A piston 13 fits slidably in the upper cylin- A tubular piston-'stem 14. extends downward from the piston, traversing the spout-passage and extending beyond the main valveseat, and a valve-shell 18 is screwed onto-the lower end of the tubular piston-stem. l The valve-shell has a central horizontal partition, and it is provided with two rubber washers partition. The upper rubber WasherA 19 closes against seat 28 and constitutes the main valve of thecock, while the rubber washer 20 acts as a seat for the auxiliary valve 26. The valve-stem comprises the tion, the intermediate reduced circular part 7,- and the still further reduced triangular part 25. The part 5 conforms to the aperture in the upper end of the cap 3. I The reduced part 7 forms a shoulder for spring 8, and the reduced triangular part 25 forms the shoulder 9 to bearagainst the piston at a certain stage in the valve-opening operation. The part 25 of the valve-stem is triangular in .cross-section from shoulder 9 to the valve 2 6. It is of a size to fit slidably inthe tubular piston-stem, and the spaces between the I plane faces of the stem and the circular inner i surface of the piston-stem form passages for Water. The auxiliary valve 26 is in the form of ya screw, as a matter of preference,

drical extension of the body above spout 2.A

upper part 5A, which is circular in cross-sec-l 19 and 20-one above andthe other below the l IOC will pass throughthe piston-stem and enter the space in the 'body above thev pistoni A'- waste-hole 15 is formed'through thel piston; and a pair'of grooves 16 form enlargements of the upper end of the passagelwaythrou'gh thepiston-stem', fra `purpose to be-herein after'explained. A push-button isformed on or attached to th'eupper end of' the'valvef stem, anda lug 6' onv the valve-stern slidesinthe'groove'cin theI upper fend of the cap andv prevents 'the stem fronrl turning.

isapplied to thef-pushLbutton to'iovercomef the tension ofsprin 8 and the water-pres#l sure'againstthesm 'l auxiliary valve' 26', the auxiliary 'valve'- will open slightly; waterwill at "once"ri'se"-through "thle assageewayili'tof above/the pistoni; and th pressuremnth'e larger piston area'willcause themainHvalveto 'open'to'someextent As soon' as the-'prese' sure is relieved4 `by escapel of water 'through' thei spout th'e'automatie opjenin'gp 'the main' valve-'zwill- Ecease but continued pressure on they pushJb'uiton'x will brin' the"sh'ould-er"9v ofl the valveLstenra insttheupper surface of the' piston-and wi l force'th'emainvalvewide' open.l Preliminary opening of fthe" auxiliary valve` is*P arr operation" 'requiring )but "littl ef! fort. Preliminary opening of the main valve is'automatic', asfhereinbeforeerillainedf and completion'of thev'alvem enin'goperationlres qujre's'b'ut flift'tlei anything, morethan-'comp` pressionoispring." Whenfpres'sure' on the pushbbuttonis `di'scontinued'f the' s ring will at once'closetheauxiliary-vallve, thus `cutting oil* Waterpressure 'from' above' the pistonl and the'flowof waterth'ougMth'e spout will act 'with' lthei'spring tof 'force1 thef main' *valve' clsedt The space"ab"ove' thel piston' -willf Ibeilled :with water; however, which"=must es'a cape through? .the wastehol'e 15 before the closure of the main= valvel can b'ecompleted; and thiscaus'esa valv'eeclosing motionsuli'- cientlyi slow toreventwater-h'arnmen It isobviou's thlatlt ewaste-holeshould notfbe" small* enough to cause needlessfdelay in clos= ing the valve, and if the hole were too large it would not permit the development of enough vpressure on the piston to unseat the main valve.

The shoulder formed by the projection of the circular part 7 of the valve-stem beyond the triangular part 25 is suiiiciently broad to cover the passage-way through the pistonstem when the shoulder is in contact with the piston, and' some provision is desirable to prevent shutting ofi the flow under these circumstances. Ordinarily the contacting surfaces will be rough 4enough or uneven enough to prevent complete closure oi the passage-way; but the grooves 16, placed on opposite sides of the passage-way, lead be'-A yond the shoulder9 and assure'a water pas sage under all circumstances.V An angle 'of' the triangular part 'of the-stem may close-oneof the grooves 16; but itislirnpossible-that both maybe-closed at "the-same time.

The'valve-sternisheld from turning in thel cock by the` lug -6' engagingthe Igroove 3 of the cap. This' provision preventsthevalve 26-from'beconngunscrewedfrom`thevalve stem and also prevents thepush--bu'ttonirom turning out ofposition. l

Thel pushebutton is preferably" rovided with the vword Pu'sh" andy wit` eitherA- Hotv7 or Cold," and these should'beplaced to read properly from the iront ofthe-basin: The'lu'gs' '17 'form-positive stops to-'limit 'the downward motionA ofi thepiston and the' main valve," and l:they dof -n'ot'v materiallyA in# terfre withy passage-v of water"through"' theL spout." The" screen 24" is a" reticul'ated or perforated plate, and it4 is-heldsomewh'at'- loosely' onits seatby theV lower endfothelower e"extension ofthe cock-body.' Thefwaterlpressure tends to hold- '-the'valvesclosed;4 but-assoorras -the auxiliary valve is forced partly-4 openl the' water-'pressure' acts in the' opposite direction to give-the main' valveits initial opening movement:

Thev valve-stem* may be `made to engage' the'piston from 'above and the-'valve-shelli ronrbelow, and -in-"case the"pistcf n or-thel valve should become clogged theylnay be moved upx and' down by meansof-thevalvestem until the'ob'structions removed.:

We=clairn-- l l 1. A'=basin1cockcomprisingaibody havingi aipassage'-wayleading-upward inte the cock* 4and -sidewise*`-therefrom-, a valvef-seat '5 int theL passagegway,` below the sidewiseextension thereof,Vy a closed: 'cylindrical' extensionof the cock-body" above` the"sidewise` extension *ofth'e-l passageswayg a pistonz `inl the' cylindrical upward 'extensionof the body, aihollowpis# tonLstem" lead-ing downward from Athe pistonI to' below th'e-valve-seat,I al main valveonthev lower endl :ofi -the1pistonstem closingupys'fardv against the'-seat,- a valve-stem extending downwardthrou hthev closed upward'fex .ter-sion of the bod IOO IIO

y and through thepistfm-I ,g 30l stem, an auxiliary valve on the lower end of the valve-stem adapted to close the hollow piston-stem, and a shoulder on the valvestem adapted to strike the piston when the4 5 auxiliary valve is opened.

2. A basin-cock comprising a body having v a passage-way leading upward into the cook and sidewise therefrom, a valve-seat in the passage-way below the sidewise extension 1o thereof, a closed cylindrical extension of the body above the sidewise extension of the passage-way, a piston in the cylindrical upward extension of the body, a hollow pistonstem leading downward from the piston to r 5' below the valve-seat, a main valve on the lower end of the piston-stem, closing up; ward against the seat, a valve-stern composed of two parts of different diameters, the arger part extending downward through the zo upward extension of the body into contacting proximity with the piston and the smaller part extending upward through the piston-stem and screwing into the larger part, an auxiliary valve on the lower end of z 5 the valve-stem adapted to close the hollow piston-stem, a push-button on the upper end of the valve-stem and a spring tending to hold the valve-stem raised.

3. A basin-cock comprising a body having 3o a passage-way leading upward into the cook and sidewisetherefrom, a valve-seat in the passage-way below the sidewise extension thereof, a cylindrical extension of the body above the sidewise extension of the passageway, a closure for the upper end of the up- 3 5 ward cylindrical extension, a piston in t e upward extension of the body, a hollow piston-stem leading downward from the piston to below the valve-seat, a valve-shell with a central horizontal partition attached to the 4o lower end of the piston-stem, a rubber washer in the upper compartment of the shell closing upward against the valve-seat in the passage-way, a rubber washer in the lower compartment of the shell forming a 45 continuation of the water-passage through the piston-stem and a valve-seat for an auxiliary valve, a valve-stem extending downward through the upward extension of the body and tirough the piston-stem and an 5o auxiliary valve on the lower end of the valve-stem adapted to close upward against the lower rubber washer in the valve-shell.

In testimony whereof we sign our names in the presence of two subscribing witnesses. 55

HENRY MUELLER. ANTON SCHUERMANN.

Witnesses:

JOHN L. WADDELL,

C. J. SHARROCK. 

